Change the quality of sleep: Intelligent technology to avoid the dependence and side effects of and energize your sleep! Bluetooth 5.0 chip: Innovative use of the Bluetooth 5.0 chip, basic "0" delay. Bluetooth Direct Connection: Connects to cell phone/laptop/tablet etc. 8 : Soothing, improving sleep and relaxation. Timed Shutdown: Three-speed intelligent timer, 30 minutes, 60 minutes, 90 minutes, sleep at ease. Specifications: Input: 5V 2A USB-C Battery capacity: 3.7V/1800mAh Bluetooth version: V5.0 Transmission distance: 10 meters Signal to noise ratio: 75dB Distortion:Less than 10 Output power: 2 x 5W Frequency response range: 100Hz-20kHz The actual object may have color difference due to different light or display Color: White Material: ABS Package Contents: 1 x Bluetooth Speaker 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.